| Acronym | Meaning |
| TPF | Terminal Phase Finalization (Braking) |
| OMCF | Orbiter Maintenance And Checkout Facility |
| OF | Orbital Flight |
| P | Pitch |
| FCSS | Fuel Cell Servicing System |
| DECS | Civil Engineering Office At Vandenberg |
| TGA | Thermal Gravimetric Analysis |
| RALPH | Reduction And Acquisition Of Lunar Pulse Heights |
| HFO | High Frequency Oscillator |
| ISS | Inhibit/Override Summary Snapshot Display |